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Cerebral malaria in children
1Institute of Molecular Medicine, John Radcliffe Hospital, Oxford.
Insights
Cerebral malaria, a severe brain complication of malaria, has high mortality. New treatments are urgently needed as drug resistance to current therapies like quinine is a growing concern.
Area of Science:
- Tropical medicine
- Infectious diseases
- Neurology
Background:
- Cerebral malaria is a life-threatening encephalopathy with high mortality.
- A key feature is the accumulation of Plasmodium falciparum-infected red blood cells in cerebral capillaries.
- Molecular mechanisms of infected red blood cell adhesion are under investigation.
Purpose of the Study:
- To review the current understanding of cerebral malaria pathophysiology.
- To assess the clinical relevance of molecular adhesion studies.
- To evaluate current and needed treatment strategies for cerebral malaria.
Main Methods:
- Literature review of molecular adhesion studies.
- Analysis of current treatment guidelines and drug resistance patterns.
- Assessment of the pathophysiology of cerebral malaria.
Main Results:
- Adhesion of infected red blood cells to endothelium is a potential trigger for cerebral malaria.
- The clinical relevance of molecular adhesion studies remains uncertain.
- Chloroquine resistance is widespread, and quinine resistance is emerging, necessitating alternative treatments.
Conclusions:
- Effective treatment options for cerebral malaria are limited due to widespread drug resistance.
- Urgent development of alternative drugs is critical to combat rising resistance.
- Further research is needed to bridge molecular findings with clinical application in cerebral malaria.
Abstract:
Cerebral malaria is a rapidly progressive encephalopathy with up to 50% mortality. A cardinal feature is the massing of red cells containing mature Plasmodium falciparum within the cerebral capillaries. Adhesion of these parasitised red cells to endothelium, an event which may initiate cerebral malaria, is being studied at the molecular level. However, the relevance of these studies to the pathophysiology and treatment of human cerebral malaria is uncertain. Although chloroquine is still widely used to treat falciparum malaria, resistance has spread to most of the endemic zone. Quinine is emerging as the only effective treatment for cerebral malaria, though resistance to this drug threatens to become a problem. Alternative drugs are urgently needed.